... integral tab serving as the knob stop.4. Top Plate - Steel, 1.5 mm thick, overall 13 mm by 31 mm ... similar to model XWX-WK-03A, except below: Top Plate - Plated steel, 1.5 mm thick, overall 32 mm by 35 mm ... to model XWX-WK-03A, except below: Top Plate - Plated steel, 1.5 mm thick, overall 32 mm by 35 mm ... mm ID. Installed outside the Cam.6. Top Plate - Plated steel, 1.5 mm thick, overall 14 mm by 31 mm ...